Woods-powr-grip MRTA8HV11DC User Manual download pdf (Page 5)

Rev 10.0/9-13 3 MRTA8-DC: #35076

SPECIFICATIONS

Description:

Designed for use with a crane or other hoisting equipment, MRTA8-DC lifters employ vacuum

to hold a load for lifting, and they provide manual 360° rotation and mechanically assisted,

manual 90° tilt movements for load manipulation.

Model Number:

MRTA8HV11DC

MRTA811LDC

Vacuum Pads:

10" [25 cm] nom. diameter,

lipped (Model HV11)

11" [28 cm] nom. diameter,

lipped (Model G3370)

(Eight, standard rubber, spring-mounted for ¼" [7 mm] travel, with #60 filter screen)

Pad Spread:

(to outer edges)

Length - Maximum:

122 1/4" [3105 mm]

123 1/4" [3130 mm]

- Minimum:

50" [1270 mm]

51" [1295 mm]

Width - Maximum:

73 1/2" [1867 mm]

74 1/2" [1892 mm]

- Minimum:

12 3/4" [327 mm]

13 3/4" [352 mm]

Lifter Weight:

304 lbs [138 kg]

300 lbs [136 kg]

Load Capacity

(rated at 16" Hg [-54 kPa] on clean, smooth, nonporous flat surfaces

)

Per-Pad:

150 lbs [68.5 kg]

175 lbs [79.5 kg]

Maximum:

1200 lbs [545 kg]

1400 lbs [635 kg]

Power Source:

12 volts DC, 26 amps

Battery Capacity:

26 amp-hours

Tilt Capability:

Manual, 90°, with four-bar tilt linkage that minimizes operator effort and automatically holds a

correctly attached load in the upright or flat position.

Rotation Capability:

Manual, 360°, with automatic latching (when desired).

Vacuum Pumps:

2 diaphragm type, 1 SCFM [28 liters/minute] nominal airflow

1 diaphragm type, 3 SCFM [85 liters/minute] nominal airflow

Vacuum Reserve Tank:

Vacuum reservoir helps prevent immediate vacuum loss in case of power failure and extends

battery life by reducing pump cycles required to maintain vacuum.

Vacuum Gauge:

Dial gauge indicates current vacuum level in positive inches of Hg and negative kPa.

Low Vacuum Warning Light:

Red light is energized until vacuum level is sufficient to lift maximum load weight (higher than

16" Hg [-54 kPa]) and whenever vacuum loss causes pumps to re-engage.

Options:

Available

with Model LB8TLO - Tilt Lock. When engaged, this option ensures that the upright

or flat orientation of the load is not compromised by accidental or unexpected forces.

See separate instructions about other options.

Operating Elevation:

Maximum = 6000 feet [1828 meters]

Operating Temperatures:

32° to 104° F [0° to 40° C]

Service Life:

This lifter is designed to have a service life of at least 20,000 lifting cycles, when used and

maintained as intended. Vacuum pads, filter elements and other wear-out items are excluded;

see MAINTENANCE and REPLACEMENT PARTS LIST for more information. For the DISPOSAL OF

THE LIFTER after its service life, see INTENDED USE.

ASME Standard BTH-1:

Design Category "B", Service Class "0" (see www.powrgrip.com for more information)

!!-CE-!! Note: This symbol appears in the

INSTRUCTIONS

manual only when requirements of a CE Standard are

different

from

requirements of other standards that also apply to this vacuum lifter. CE requirements are mandatory in geographical areas

where CE Standards apply, but may be optional in other locations.

Available with optional closed-cell foam rings for applications on rough or textured surfaces.

To identify the Pad Spread for any specific pad frame configuration, see the illustrations in ASSEMBLY: TO CHANGE THE PAD FRAME

CONFIGURATION.

Load Capacity is based on a friction coefficient of 1; see MAINTENANCE: VACUUM PAD MAINTENANCE: Friction Coefficient for

additional information.

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Woods-powr-grip MRTA8HV11DC User Manual Page 5

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